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* doc/writing_filters: Use ff_filter_get_nb_threads() get number of threadsJun Zhao2019-05-22
| | | | | | | | | | ff_filter_get_nb_threads() respect AVFilterContext.nb_threads and graph->nb_threads both, in most case, we perfer this API than using ctx->graph->nb_threads directly. Reviewed-by: Steven Liu <lq@onvideo.cn> Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
* lavfi: add new iteration APIJosh de Kock2018-03-31
| | | | Signed-off-by: Josh de Kock <josh@itanimul.li>
* Merge commit '11a9320de54759340531177c9f2b1e31e6112cc2'Clément Bœsch2017-05-03
| | | | | | | | | * commit '11a9320de54759340531177c9f2b1e31e6112cc2': build: Move build-system-related helper files to a separate subdirectory "ffbuild" directory name is used instead of "avbuild". Merged-by: Clément Bœsch <u@pkh.me>
* doc/writing_filters: miscellaneous grammar and typo fixesGanesh Ajjanagadde2015-10-08
| | | | Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
* doc/writing_filters: use ffmpeg.org instead of wikimedia.org for lena imageClément Bœsch2014-11-19
| | | | | | Less likely to change, and under our control. Thanks-to: Michael Niedermayer
* doc/writing_filters: fix reference to Lenna imageClément Bœsch2014-11-18
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* doc/writing_filters: use a more portable sed command in the walk-throughClément Bœsch2014-11-18
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* doc: add a tutorial for writing filters.Clément Bœsch2014-05-26